LG THERMA V AHNW16606B0 Service Manual page 17

ELEMENT TERMINAL BLOCK
X1 L1, L2, L3, N, PE
A5, GND
X2 Q11, N
Q12, N, PE
Q7, N, PE
Q8, N, PE
X3
N, Q9+, Q10-
A7, GND
D8, GND
D7, GND
X4
D6, GND
D5, GND
X5 BUS–A, BUS – B, GND, 10 V
X6 A+, B-, 12 V, GND
X7 A+, B-, 12 V, GND
1
2
3
4 D4
5
TW Modbus
TX Modbus
Ethernet
6 A6
7 Q3
8 A1
9
WM
TEX
TS
TE2
RQ1
RQ2
10
L
N
V-
V+
11 A3
12 A4
13
14 A2
C
TV
RC
Power cable
Temperature sensor for external temperature
Cooling valve
Additional external source
Circulation pump of heating cycle 1 (optional)
Circulation pump of heating cycle 2 (optional)
Mixing valve of heating cycle 2 (optional)
Temperature sensor of mixing-heating cycle 2 (optional)
Switch heating/cooling and/or PV signal (optional)
Thermostat of heating cycle 2 (optional)
Thermostat of heating cycle 1 (optional)
Remote on/off (optional)
Communication with the ODU
Communication spatial corrector (optional)
Communication with expansion unit TT3003
Flow electrical heater
Tree way valve for switching between heating and DHW
Basic input/output module MD1
Flow switch
Web module (OPTIONAL)
Communication with PLC
Not in use
Internet connection
Temperature sensor of the supply pipe
Main circulation pump
Temperature sensor of the return line
Process module - PLC
Communication with the Web module
MODBUS communication with the ODU
Communication with the spatial corrector
Communication with the basic module MD1
ALARM dry contact
RESET dry contact
Power supply ~ 230 V / 12 V
Phase 230 V 50 Hz
Neutral 230 V 50 Hz
Protective earth
GND
12 V dc
Temperature sensor refrigerant pipe – condenser inlet.
Temperature sensor refrigerant pipe – condenser outlet.
Membrane Keyboard
Temperature sensor of sanitary water
Electrical contactor of the electrical heater
Thermal protection of the electrical heater
RC Filter.
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DESCRIPTION